Keying device for rolls.



W. P. KIRK. KEYING DEVICE FOR ROLLS. APPLICATION FILED SEPT. 16,1911.

1,1 30,409., Patented M21112, 1915.

. I 1 INVENTOR WITNESSES YHE NORRIS FE-TEES co.. WAEHINGTDN. a. c.

TED

mil :mgimw ullislruz State tr Pennsyl vaniag ha ve' inwented a newanduseful' fmprovement in -=Keying'*'Deti'ces for Rolls, of which thefollowing is speci- TM 1". mi iu -nq'wu wit 3 li-{H Arm" ,2 i My=inv'entibn is improi emerl tiir keying devices forrolls,'*'and-has""for itsoliiject e-ai rpr emiofsim le, p y constructed,speedy and powerful mechanism of the character specified, especiallydesigned 'for crushing limestone, a'n-d' hztviif but *tne roll,cooperating with afixtehglittf means of which the stone ecrush'ed tovarying degrees of fineness in accordance with ut! r}-"i:. "x;! X514 gn? In the drawings: Figure 1 is of the shaft, Fig. 2 is an enlargedVertical section through one of the rolls with the shaft partly insection, and Fig. 3 is an enlar ed end view of the roll.

The present embodiment of the invention is shown as connecting acrushing roll with its shaft. The shaft is provided at each end with abearing spindle 17 and 18, re spectively, the spindles being journaledin suitable bearings, not shown, and the spindle 18 is extended beyondthe bearing and is provided with a key way 19 for receiving a key tohold the gear wheel in place.

The shaft 15 is provided near each end with an annular rib or enlargedportion 21 between the spindle and the shaft, and the said ribs orenlargements are octagonal in the present instance. The shaft isprovided with a shoulder 21 at each end of the ribs 21, and outside ofeach of the said ribs an annular enlargement or collar 22 is arranged.Outside of the collars 22 the shaft is provided with a frusto-conicalportion 23, having its small end inward, and an annular shoulder 25 isformed at the large end between the said portion and the adjacentspindle. The shaft, spindles, ribs 21 and portions 22 and 23 areintegral, the shaft being turned to the shape described.

The roller 16 consists of a shell, cylindrical in form, and provided onits peripheral surface with teeth 26. The shell is of greater internaldiameter than the shaft, so that an annular space or chamber 29 isformed between the shell and shaft, and the ends of the bore of theshell are reduced, as indicated. at 30, and are octagonal in cross ma-WIIlI AM-1F [mm .or .HOBLIQAESMIRQ r g nnyron ron :aoriLs arms n r i, H{me i svt wit ll s uwisli miit w G ills; i i= sectiori,-=that* isgfth'esaif F en'd's *hate acro's s i section scor responding to that of theribs 21 .of-the shaft. "The said reduced ends of the Fboraarebfgrzitrsize than" the ribs '21 fitting "loosely"thereon, andthey are alsotape-ring{ that is, they increase 1 graduallyin J 1 cross section" from"within oiitw'ard. -Wedgeshape-d blocks 31 of 'woo'd or "likejntri alarezainserted between the faces *of "15% 2 1 and the faces of thereduce-(feudste h'old the shell in' proper position on thesnaittf' Awedge shaped platen 32; preferably o'f steel, is inserted in each block,and the-blocks and plates are lreld in laceby meansofrings or =coll'arsi3B: dfzacli collar "38 is -seated on a portion z22 'of the shaft-fandthe' said ringsi or collars are held in place sprews 3 1 d agagaiEach of the 5 rings or collars has its inner edge circular, while theouter is polygonal, as shown in Fig. 3. The portions 22 of the shaft areof sufficient diameter to permit the collars to be slipped over theportions 23, and the 3 shoulders 25 of the said portions space the shaftproperly in the bearings. The shell 16 is also provided with an annularrib or flange 35 at each end. I

I claim:

1. In combination, a shaft provided near each end with an enlargedportion polygonal in cross section, and with an annular shoulder at theouter end of each of the said portions, a shell having each end of itsbore of a cross section similar to the enlarged portion of the shaft tofit said portions loosely, said ends of the bore of the shell taperingfrom without inward, a wooden wedge between each of the adjacent facesof the shell and shaft, a metallic wedge insorted in each of the woodenwedges, a ring on each of the annular shoulders, and screws passingthrough the ring and engaging with the enlarged portion of the shaft,said shaft having a frusto-conical enlargement at the outer side of eachshoulder.

2. In combination, a shaft provided near each end with an enlargedportion polygonal in cross section, and with an annular shoulder at theouter end of each of the said portions, a shell having each end of itsbore of a cross section similar to the enlarged portion of the shaft tofit said portions loosely, said ends of the bore of the shell taperingfrom without inward, a wooden wedge between each of the adjacent facesof the shell and shaft, a metallic wedge inserted in each of the woodenwedges, a ring on each of the annular shoulders, and screws passingthrough the ring and engaging with the enlarged portion of the shaft.

3. In combination, a shaft provided near each end with an enlargedportion polygonal in cross section, and with an annular shoulder at theouter end of each of the said portions, a shell having each end of itsbore of a cross section similar to the enlarged portion of the shaft tofit said portions loosely, said ends of the bore of the shell taperingfrom without inward, a wooden wedge between each of the adjacent facesof the shell and shaft, a metallic wedge inserted in each of the woodenwedges, and a ring secured to the shell at each end, said ring restingon the annular shoulder.

4. In combination, a shaft provided near each end with an enlargedportion polygonal in cross section, and with an annular shoul der at theouter end of each of the said portions, a shell having each end of itsbore of a cross section similar to the enlarged portion of the shaft tofit said portions loosely, said ends of the bore of the shell taperingfrom without inward, a wooden wedge between each of the adjacent facesof the shell and shaft, a metallic Wedge inserted in each of the woodenWedges, and means for holding the wedges in place.

5. In combination, a shaft provided near each end with an enlargedportion polygonal in cross section, and with an annular shoul der at theouter end of each of the said portions, a shell having each end of itsbore of a cross section similar to the enlarged pcrtion of the shaft tofit said portions loosely,

said ends of the bore of the shell tapering 40 from without inward, awooden wedge be tween each of the adjacent faces of the shell and shaft,and a metallic wedge inserted in each of the wooden wedges.

WILLIAM F. KIRK.

l/Vitnesses:

JOHN T. AKERs, T. B. MCFARLAND, S. R. VAN ALLMAN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Eatents, Washington, I). 0.

